Car-wheel chiller.



A. WRIGHT. CAR WHEEL CHILLER.

APPLICATION FILED MAY 22, 1915. 1,174,461.

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A. WRIGHT.

CAR WHEEL CHILLER. APPLICATION mso 1M/22.1915.

Patented Mar. 7, 1916.

2 SHEETS-SHEET 2 WUIL n o M l THE COLUMBIA PmNauRAPl-l co.. WASHINGTUN, D..C.

formity in the wheels ARTHUR WRIGHT, OF FOREST HILLS GARDENS, NEW YORK.

Can-WHEEL onILLEa.

To @ZZ wwmz't may concern Y Be it known that l, ARTHUR l/VRIGHT, of Forest Hills Gardens, vin the county .of Queens, and in the Stateof New York, have invented a certain new and useful Improvement in Car-VVheel Chillers, and do hereby declare that the following is a full, clear, and eXact description thereof.

My invention relates particularly to a` Chiller for use in molding vchilled car wheels.

ln producing chilled car wheels, it is necessary to moldthe tread of the wheel against a body. of metal, as for example, iron, so that the heat of the moltenY metal in the mold will be conducted away so rapidly that the carbon will` not have an opportunity to separate out from the molten cast iron in the tread of the wheel, thus producing a Chilled vsurface around the tread of he wheel, which is useful for its extreme hardness. Hitherto, it has been customary to mold such Wheels in Chillers which have been, in most instances, merely solid rings of iron. Such rings of iron, however, are disadvantageous for use as chillers, as when the molten iron Comes into co-ntact with them, they immediately begin to eX- pand, while atthesame time, the molten, metal in cooling andsolidifying immediately begins to contract so that the chiller leavesthe surface of the tread portion of the wheel to be chilled, thus defeating the very purpose .of the chiller in a large degree, which is to have the Chiller remain m contactso as to conduct away the heat from the tread, as rapidly as possible. Furthermore, when the chiller begins to leave the surface o-f the tread portion of the wheel in this manner, it frequently happens that" the Chiller becomes separated from said surface a greater distance at one side 'of the wheel than at the other side thereof, thus producing uneven chilling in a wheel, andv consequent imperfections and lack of uniproduced.

In some instances, chillers have been used iniwhich there were a number of bars cast on to the inner face of the chiller and directed toward the tread of the main ring of the Chiller being provided with a hollow space so that the same'could be supplied with steam prior to the pouring of the wheel, and with Vcold water immedi ately after the purpose being Specification of Letters Patent.

wheel, the

pouring of the wheel, theV to decrease this. Way,

far as possible, the expansion of the Chiller when heated by the body of molten metal. Such Chillers have, however, been quite ineffective, as the heating and subsequent attempted cooling do not in fact result in any very appreciable Cooling of the chillers, owing to the fact that the chillers are in 1 Patented Mar. 7, 1916. y Application nieu May 22, i915. serial No. 29,7114.

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contact with the bodies of highly heated molten metal. Such chillers do not lavoid the difficulty ofthe solid ring chillers, as v structed in this manner would separate from the surfaces lof thetreadportions of the wheels in the molding operation, and prothe surfaces of the chillers even when Conduce the same disadvantageous results and Y diliiculties incident to the use of chillers l made of solid rings of iron. Furthermore, this type of Chiller in whichV itis necessary to supply steam, and subsequently Cold water required an elaboratesystem ofundergreund piping toy supply the steam andv coldV water Y v to each indiv'dual Chiller on the lloorwhere the molding operations were being carried out. As can be seen, this was the cause of very great eXpensein the installation of the equipment, also a great expense in the maintenance and utilization of the apparatus owing to the necessity of connecting and disconnectingthe chillers with the two sets of pipingat each molding operation, and owing to the necessity of repairs to theunderground piping systems and the many valves and faucets found necessary. y'

The object of my linvention is to provide a car Wheelchiller in which there is not the great expansion inthe Chiller at. the time when the molten metal is to be chilled in the mold, but in which there is a positive lcon-` traction of the Chiller at the time of the molding operation, so that the interior 'of theJ chiller may be maintained in close proximity to the tread of the wheel to be chilled. A further object of my `invention is to provide a Chiller in which this action is carried out entirely automatically by the action of the @einer itself and Without ai@ of energy.

A further' cbj ect of my invention vis vto provide a Chiller, the diameter of which may beV corrected from time to time to'take up for the-wear or remilling ,of the inner surface of the chiller.

ll7hile my invention isy capableY of em,-4 svrcnt forms for the bodiment in many Cil purpose ofillustration, l have shown only one form thereof in the accompanying drawings, in which, v

Figure 1 is a plan view of a. Chiller made in accordance with my invention; Fig. 2 is a vertical section of half of a mold for a Car wheel, showing my Chiller in the mold; Fig. 3 is an enlarged fragmental view partly in section of the top of my Chiller; and Fig. l is a vertical section of my Chiller partly in elevation.

In the drawings I have shown a mold, comprising abottom plate 1, a bottom ring 2 having lugs 3 to receive heads 4 of bolts 5, which Clamp a Chiller 6 to a top ring 7, having` lugs 8 to be engaged by the bolts 5, and a central elevated ring 9 to provide a feeding opening 10 for the molten metal. When the mold is prepared to receive` the molteniron, it is provided with a` body of sand 11 in the proper form and a Central core 12 which forms the only opening in the wheel. lVhen the molten metal has been poured into the mold, and has hardened, it forms a head 11 in the opening 10, anda wheel 13, which are separated from each other by the blow of a` hammer, prior to Vthe removal of the wheel 13 from the mold.

The Chiller is comprised of an outer ring made up of four sections 14, said sections having lugs 15 to receive bolts 1G so as to clamp the sections together and exert, the proper Clamping force upon the interior parts of the Chiller, and so as to adjust,

when desired, the interior diameter of the opening in the Chiller which is provided to receive the molten metal. On the face of each of the sections 14, there is provided a layer 17 of highly compressed heat-insulating material. lNithin the layer 17 of heat-insulating material, there is a spiral ring 18 of iron having an upper Circular portion 19, and a lower circular portion 20. To the upper circular portion 19 there are pivoted a series of inclined levers 21, having bars 22 on their inner faces directed toward the opening provided for receiving the ymolten iron. Each of these bars' 22 is divided into two subsidiary bars 23 by a slot 24. VThe pivotal Connection between the levers 21 and the ring 19 is formed by screws 25 which Connect the levers 21 to the upper Circular portionv 19. Each of the levers 21 is, furthermore, Connected to the lower circular portion 2O by a link 26, screw threaded pivots 27, being provided to connect the levers 21 and the links 26 together. The links 26 are similarly pivoted to the lower circular portion 20 by screws 28. A number of ears 29 are preferably formed. ou the ring sections 14 so as to position said sections with regard to the remaining parts.

ln the operation of my invention, when the molten metal is poured into the opening 10, and-,ills the wheel opening therein, the' L17-nasi molten metal comes in Contact with the bars 23 thus heating up the bars 23, as well as the spiral ring 18. The parts inside of the insulating layer 17, thus begin to expand against the lliXed support provided by the ring sections 14e, which are not heated from the body of molten metal in the Chiller owing to the heat-insulating layer 17. The mere length of the levers 21 and links 2G will thus produce. an inward movement of the bars 23 toward the cooling body of iron in the Chiller thus following up the surface of the wheel in the Chiller and Conveying away the heat from the surface thereof to produce an effective chilling of the tread portion of the wheel. This inward movement of the bars 23 is, however, very much increased and magnified by the longitudinal expansion of the spiral ring 18. The ring 18, owing to the fact that each of the bars 22 has its leve-r 21 connected to the upper Circular portion 19 while its link 26 Connected to the lower circular portion 20, conveys its longitudinal expansion tothe toggle lever support for each of the bars 22 Aand comprising the lever 21 of the link 26 attached thereto, so that the longitudinal expansion of the ring 13 is transformed into an inward movement of the bars 22, which inward moveinent is, however, further magnified by the toggle lever support for eachl of said bars In this way, a very effective contraction of the inner surface of the Chiller is obtained, thus causing the bars 23 to follow the surface of the wheely in close proximity thereto and effectively chill the same. ln case of any wear of the parts or in case it becomes necessary to re-mill the inner surface of the Chiller, that is to say, the faces of the bars 23, the internal diameter of the opening in the Chiller may be re-adjusted to its original size by screwing up the bolts 16 so as to Contract to the desired degree the spiral ring 18 and the various bars 22 supported thereon. llurthermore, the provision of these bolts 16 permits the several Chillers to be adjusted until all of the Chillers in a desired set have exactly the same internal diameter. The arrangement is such. furthermore, that the Chiller may be readily taken apart for repairs, and so that individualparts thereof may be readily replaced without the expense of providing an entirely;7 new Chiller throughout.

llhile l have described my invention above in detail, l wish it to be understood that many Changes may be made therein without departing from the spirit of my invention.

l Claim:

1.V A car wheel Chiller having means for moving its internal surface inwardly Comprising a circularly arranged member having circumferential movement and a bar connecting the'inner surface of the Chiller to said member to convert 'said circumferem tial movement into an inwardly directed movement of said surface.

2. A car wheel Chiller having meansV for moving its internal surface inwardly vunder lthe influence of heat fromthe molten metal comprising a circularly arranged member having circumferential movement and a bar connecting the inner surface of the Chiller to said member to Convert said circumferential movement into an inwardly directed movement of said surface.

' 3. A Car wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, Comprising a fixed support substantially nonexpansive by the heat from the molten metal'.

4. A Car wheel Chiller having means for movingits internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat from the molten metal, comprising a fixed support substantially nonexpansive by the heat from the molten metal. y

5. A car wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, Comprising a fixed support substantially nonexpansive by the heat from the molten metal, and bars associated with the same arranged to be heated from the molten metal.

6; A Car wheel Chiller having means for moving itsv internal surfacerinwardly relative `to the outer surface'of the Chiller, under the influence of heat from the molten metal, comprising a. fixed support substan-V tially nonexpansive by the heat from the molten metal, and bars supported from the.

same arranged to be heated from the molten metal.

7 A Car wheel Chiller having means fory moving its internal surface ,inwardly relative to the outer surface of the Chiller, Comprising a fixed support, and a spiral ring Carrying bars supported from the same arranged to be heated from the molten metal.

8. A Car wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat from the molten metal, comprising a fixed support, and a spiral ring Carrying 'bars supported from the same arranged to be heated from the molten metal.

9. A car wheel Chiller havingmeans for moving its internal surface inwardly relative to the outer surface of the Chiller, comprising 'a fixed support, andv a spiral ring carrying a toggle lever having bars supported from the same arrangedto be heated from the molten metal.

10. A Car wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, un-

y molten metal,

der ,the infiuenceof heat from the molten metal, Comprising a fixed support, anda spiral ring carrying a toggle lever having bars supported4 from the same arranged to be heated from thev molten metal. V 11. A car wheel Chiller having means for moving its linternal surface inwardly rela tive to the outer surface of the Chiller, comprising a heat'insulated ixed support.l

12. A car wheel Chiller having means for moving its'internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat from the molten metal, comprising a heat 'insulated fixed support.

13. A car wheel Chiller having means for movingits internal `surface inwardly .relative to the outer surface of the Chiller, Comprising aheat insulated fixed support, and bars supported from the same arranged to be heated from the molten metal.

'14. A car wheel'chiller having means for moving its internal surface inwardly relay Y prisinga heat insulatedrfixed support, and

a spiral ring carrying bars'supported from the same arranged to be heated from the molten metal. y a C 16'. A Car wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat 'from' the molten metal, comprising a heat insulated fixed support, and a spiral ring Carrying bars supported from the same arranged to be heated4 from the molten metal. i

17 .'A car wheel Chiller having means for moving its internal surface-inwardly relative to the outer surface of the Chiller, Comprising a heat insulated'fixed support, and a spiral ring carrying a toggle lever having bars supported from the same arranged to be heated from the molten metal.

18. A vCar wheel Chiller having means for `moving its internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat from the molten metal, comprising a heat insulated fixed support, anda spiral ring Carrying a toggle lever having bars supported from the same arranged to be heated from the molten metal. a

19. A car wheel Chiller having means for Y moving its internal surface inwardly relative to the outer surface of the Chiller, compris- '.ing a sectional adjacent fixed support substantially nonexpansive by the heat from the 20. A car Wheel Chiller having means for moving its internal surface inwardly relative to the outer surface of the Chiller, under the influence of heat from the molten metal, comprising a sectional adjacent fixed support substantially nonexpansive bythe heat from the molten metal.

2l. A car Wheel Chiller having means for moving its internal surface inwardly relative to the outer surface or the Chiller, comprising a sectional adjacent iXed support substantially nonexpansive by the heatfrom the molten metal, and bars supported from the same arranged'to he heated from the molten metal.

22. A car wheel Chiller having means for moving its internal surface inwardly rela tive to the outer surface of the Chiller, under the influence of heat from the molten metal, Comprising' a sectional adjacent fixed support substantially nonexpansive by the heat from the molten metal, and, bars supported from the same arranged to be heated from the molten metal.

23. A car Wheel Chiller having means for moving its internal surface inwardly'relative to the outer surface of the Chiller, comprising a sectional adjacent iiXed support, and a. spiral ring carrying hars supported from the same arranged to be heated from the molten metal.

24. A car Wheel Chiller having means for moving its internal surface ini'vardly'rel'ative to the outer surface of the Chiller, un-

levees der the influence of heat from the molten metal, comprising a sectional adjacent fixed support, and la spiral ring carrying bars supported from the same arranged to be heated from the molten metal.

A car Wheel Chiller having means for moving its internal surface inwardly relative tothe outer surface of the Chiller, Comprising a sectional adjacent fixed support, and a spiral. ring'carrying a toggle lever having hars supported from the" same arranged to be heated from the molten metal. 26. A Carv Wheel Chiller having means for moving its internal surface inwardly relative to the outer surface or the Chiller, under the influence of heat from the molten metal, comprising a sectional adjacent iiXed support, and a spiral ring carrying a toggle lever having bars supported Afrom`the same arranged to be heated from the molten metal. i

27. A car Wheel Chiller having means for moving its internal surface inwardly Comprising a. toggle lever and means to canse the ends of the links therein to approach each other under the influence or the heat from the molten metal. i Y

ln testimony that l claim the foregoing l have hereunto set my hand.

ARTHUR WRIGHT. lVitnesses:

Aeiviis F. MCLAUGHLIN, M. K. MORSE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. o. 

